docs: make onboarding friendlier for beginners (#4177)

* docs: make onboarding friendlier for beginners

* docs: build clearer documentation paths

Maintainer edit: turn the onboarding follow-up into a layered docs structure for first-time setup, provider selection, troubleshooting, CLI reference, and source-level architecture. This keeps quick start focused while giving advanced users precise reference paths.

* docs: render architecture flow with mermaid

Maintainer edit: replace the ASCII architecture sketch with a GitHub-rendered Mermaid flowchart so the core runtime path is easier to scan in the PR and README docs.

* docs: recommend model presets for model config

Maintainer edit: make named modelPresets the primary model configuration path and expand fallback preset examples so string fallbacks are clearly preset names, not raw model IDs.

* docs: document api base urls and langfuse setup

Maintainer edit: explain when users need apiBase/base URL in quick start and provider docs, and add Langfuse tracing setup with troubleshooting links.

* docs: use python module pip consistently

Maintainer edit: keep install commands tied to the active Python interpreter by using python -m pip in the Azure optional dependency notes too.

* docs: add non-technical getting started path

Maintainer edit: add a wizard-first guide for users without terminal or JSON background, including a text TUI menu example and links from the main docs entrypoints.

* docs: avoid hard-wrapped prose in user docs

Maintainer edit: unwrap ordinary prose across user-facing documentation while preserving markdown structure, code blocks, tables, lists, and prompt/template files.

* docs: keep desktop list continuations nested

Maintainer edit: preserve list nesting after unwrapping prose in the desktop WebUI sync guide.

* docs: add one-command installer

Maintainer edit: add auditable macOS/Linux and Windows install scripts that install nanobot-ai and start the onboarding wizard, then document the commands in the main onboarding entrypoints.

* docs: add installer dry run mode

Maintainer edit: add --dry-run to the one-command installer scripts so users can preview Python detection, install source, pip command, and wizard behavior without changing their environment.

* docs: clean installer error output

Maintainer edit: make PowerShell installer failures print a concise Error: message instead of Write-Error call-site details.

* docs: add provider setup cookbook

Maintainer edit: add pasteable provider recipes for common hosted, local, fallback, runtime switching, and Langfuse setups, then link the cookbook from onboarding and troubleshooting entrypoints.

* docs: address review feedback

* docs: clarify reader paths

* docs: explain terminal basics for beginners

* docs: clarify wizard navigation

* docs: avoid duplicate onboarding steps

* docs: add setup status check

* docs: explain status output

* docs: remove provider recommendation wording

* docs: explain status diagnostics

* docs: reduce hard-wrapped guidance

* docs: migrate config examples to presets

* docs: clarify python command fallbacks

* docs: improve installer failure recovery

* docs: expand install troubleshooting

* docs: cover installer download failures

* docs: put stable install paths first

* docs: add bundled webui quick path

* docs: clarify provider-neutral setup

* docs: clarify gateway setup for chat surfaces

* docs: improve docs navigation paths

* docs: add configuration quick jump

* docs: clarify provider secret variables

* chore: request PR review acknowledgement

Empty commit: please read the PR review comments and reply on the PR to confirm that you have received them.

This commit intentionally changes no files; it exists only to notify the remote Codex run so it can end its active goal.

* docs: add README start here guide

* docs: avoid provider recommendation wording

* docs: guide next steps after first reply

* docs: explain merging JSON snippets

* docs: add CLI command chooser

* docs: add configuration task map

* docs: add deployment readiness guide

* docs: simplify WebUI entry paths

* docs: add provider recipe chooser

* docs: fix provider factual references

Update OpenRouter and LongCat model examples, align Bedrock guidance, and make fallback snippets schema-valid.

Also correct group policy wording and image-generation provider lists to match the current code.

* fix: keep PowerShell installer from closing caller shell

* docs: mention self-guided configuration

docs/python-sdk.md

@@ -2,6 +2,14 @@
 
 Use nanobot as a library — no CLI, no gateway, just Python.
 
+Before debugging SDK code, prove the same config works from the CLI:
+
+```bash
+nanobot agent -m "Hello!"
+```
+
+`Nanobot.from_config()` reuses your normal `~/.nanobot/config.json`, so provider, model, tools, and workspace behavior match the CLI unless you override them.
+
 ## Quick Start
 
 ```python
@@ -19,8 +27,6 @@ async def main() -> None:
 asyncio.run(main())
 ```
 
-`Nanobot.from_config()` reuses your normal `~/.nanobot/config.json`, so the SDK follows the same provider, model, tools, and workspace defaults as the CLI unless you override them.
-
 Use `async with` when possible so MCP connections and background cleanup work are closed before the event loop exits. If you manage the instance manually, call `await bot.aclose()` in a `finally` block.
 
 ## Common Patterns